Bit setting on H552U

Does anyone know how I can change the bit setting on this drive?

http://www.cdfreaks.com/reviews/Samsung-TS-H552U-DVD-Burner.html

I’m very new, and lost…any help is appreciated, thank you. I’ve looked in DVD Decrpyter, but it doesn’t look like theres an option to change TS drives…

Thank you

In the bit setting section of Nero CD-DVD Speed 4.20, everything is greyed out.